| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive irreversible circuit element with an excellent characteristic that its magnetic body and its center conductor can easily be positioned and deviation in the position of the magnetic body can be prevented. SOLUTION: The magnetic body 55 is positioned by three projections 56 placed at an outer circumference of a grounding section 54 of the center conductors so as to be held at a prescribed position of the grounding section 54 with high accuracy and the center conductors 51-53 are placed on an upper face of the magnetic body 55 in crossing with each other at an angular distance of 120 degrees.
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